File size: 1,864 Bytes
619f93d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | package buffer
import (
"errors"
"io"
"testing"
)
func TestReader_ReadAt(t *testing.T) {
type args struct {
p []byte
off int64
}
bs := &Reader{}
bs.Append([]byte("github.com"))
bs.Append([]byte("/OpenList"))
bs.Append([]byte("Team/"))
bs.Append([]byte("OpenList"))
tests := []struct {
name string
b *Reader
args args
want func(a args, n int, err error) error
}{
{
name: "readAt len 10 offset 0",
b: bs,
args: args{
p: make([]byte, 10),
off: 0,
},
want: func(a args, n int, err error) error {
if n != len(a.p) {
return errors.New("read length not match")
}
if string(a.p) != "github.com" {
return errors.New("read content not match")
}
if err != nil {
return err
}
return nil
},
},
{
name: "readAt len 12 offset 11",
b: bs,
args: args{
p: make([]byte, 12),
off: 11,
},
want: func(a args, n int, err error) error {
if n != len(a.p) {
return errors.New("read length not match")
}
if string(a.p) != "OpenListTeam" {
return errors.New("read content not match")
}
if err != nil {
return err
}
return nil
},
},
{
name: "readAt len 50 offset 24",
b: bs,
args: args{
p: make([]byte, 50),
off: 24,
},
want: func(a args, n int, err error) error {
if n != int(bs.Size()-a.off) {
return errors.New("read length not match")
}
if string(a.p[:n]) != "OpenList" {
return errors.New("read content not match")
}
if err != io.EOF {
return errors.New("expect eof")
}
return nil
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := tt.b.ReadAt(tt.args.p, tt.args.off)
if err := tt.want(tt.args, got, err); err != nil {
t.Errorf("Bytes.ReadAt() error = %v", err)
}
})
}
}
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